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Finding the Fourth Proportional to 103,325.98, 154,988.98 and 40,996.48

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Solution

The fourth proportional to 103,325.98, 154,988.98 and 40,996.48 is: 61,494.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,325.98 : 154,988.98 = 40,996.48 : x
  2. Step 2: Convert to fraction form
    103,325.98/154,988.98 = 40,996.48/x
  3. Step 3: Cross multiply
    103,325.98x = 154,988.98 × 40,996.48
  4. Step 4: Simplify right side
    103,325.98x = 6,354,002,618.79
  5. Step 5: Solve for x
    x = 6,354,002,618.79/103,325.98
  6. Step 6: Final answer
    x = 61,494.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.